A security screener at Los Angeles International Airport has been taken into custody after quitting his job and making threats that led officials to clear and search terminals at the airport, the FBI said in a statement on Wednesday.

Nna Alpha Onuoha, 29, was arrested shortly before midnight on Tuesday east of Los Angeles in Riverside, and he remains in custody on suspicion of making threats pending additional investigation.

Authorities searched Onuoha's minivan on Wednesday morning as part of the investigation, according to FBI spokeswoman Laura Eimiller.

Scroll down for video

Ex-TSA screener Nna Alpha Onuoha, 29, has been taken into police custody after he made threatening police calls demanding that LAX should be closed

Police found several threatening notes in Onuoha's apartment including this one which alluded to today's 12th anniversary of 9/11

Officers cleared the church parking lot where the van was parked, and a KABC-TVnews helicopter showed a bomb squad robot conducting a search in and around the vehicle.

Onuoha is an army vet, reports KABC-TV, who lives at a shelter for ex-soldiers in Inglewood, near LAX. A search of his otherwise empty apartment turned up a note containing unspecified threats that cited Wednesday's Sept. 11 anniversary. Additional details of the contents of the letter were not immediately provided.

RELATED ARTICLES

Share this article

Share

No harmful materials were found at the airport or the man's apartment, the FBI said.

The Los Angeles Police Department Bomb Squad also inspected a package allegedly left at TSA's headquarters in the airport after he resigned from his job, and the package was addressed to another agency employee, officials said.

Nna Alpha Onuoha, 29, was arrested shortly before midnight on Tuesday east of Los Angeles in Riverside

A bomb squad robot conducts a search in and around Onuoha's vehicle which was tracked down to a church carpark

The ex-TSA screener was arrested late Tuesday for allegedly making terrorist threats related to the 12th anniversary of the 9/11 attacks

The officers found no harmful contents in the package but turned up an eight-page letter in which Onuoha expressed disdain for the United States and referenced an event that led to a recent suspension from the job he had held since 2006, the FBI said.

It was not clear early Wednesday what the incident had been.

Later, a man authorities believed to be Onuoha made two phone calls to TSA saying certain airport terminals should be evacuated. During one call, the man told an employee he would be monitoring to see if authorities would evacuate the terminals as instructed.

No threats were found in authorities' search of the terminals. The airport is the nation's third busiest airport.

Terminals at LAX were cleared and searched as a result of calls from disgruntled TSA worker Nna Alpha Onuoha